The ASUS SmartDoctor software was used to get the maximum overclock from our card. SmartDoctor allowed us to raise the core voltage to 1.21v to help get our maximum overclock, which you will see below in the GPU-Z screenshot. We still wonder why ASUS has not updated the GUI of this software. It works great, but looks very old and outdated compared to the other software released from other companies.
Overclocking the GTX 580 was fairly straightforward using software that ASUS has supplied. We ended up achieving an excellent 27% overclock of the core and almost a 10% overclock on the memory while at max voltage. While not exactly the “50% Faster” that was claimed on the box, the overclocks that we were able to reach were great overall.
With the GTX 580 overclocked, the game performance did increase noticeably in our tests. We will let the charts do most the talking, as they can provide a clearer picture as to what you can expect from stock to overclocked on the ASUS GTX 580.